144 Abnormal Swarming. 
tion of the honey yield. It is commonly observed that 
while a moderate yield of honey is very provocative of 
swarming, a heavy flow seems frequently to absorb the 
entire attention of the bees, and so destroy the swarming 
impulse entirely. Cells thus destroyed are easily recog- 
nized, as they are torn open from the side and not cut back 
from the end. 
Swarming out at other times, especially in late winter 
and spring, is sometimes noticed by ajiarists. This is 
doubtless due to famine, mice, or some other disturbing 
circumstance which makes the hive intolerable to the bees. 
